Takes on “Already Clean”
Reflections on Goodfire's "Neural Networks Are Already Clean," arguing neuron-basis attribution graphs and steering offer a useful low-level overlay for LLM interpretability, with speculation on neuron monosemanticity.
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LessWrong
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Topic Interpretability
Source LessWrong · 3
Date Past week
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J-lens preferentially reads from coordinate-aligned subspaces
Mechanistic analysis of Gemma-4-31B's residual stream finds two coordinate-aligned subspaces dominate the J-lens readout, while semantic content is also spread across other coordinates.
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Model's "emotions" noticeably change when they take risky actions
Shows that emotion-vector probes in LLM activations shift before reward hacking and specification gaming, can predict hacks several sentences early, and steering them changes hacking rates.